Income Tax - Provision for Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Federal:
Current	$ 0	$ 0
Deferred	(3,868)	(3,045)
State:
Current	5	5
Deferred	488	(738)
Foreign:
Current	0	0
Deferred	(159)	0
Total Federal, State and Foreign	(3,534)	(3,778)
Change in valuation allowance	3,539	3,783
Income tax provision	$ 5	$ 5